| Kingdom: Fungi |
| Phylum: Basidiomycota |
| Subphylum: Hymenomycotina |
| Class: Agaricomycetes |
| Subclass: Agaricomycetidae |
| Order: Hymenochaetales |
| Family: Schizoporaceae |
| Genus: Oxyporus |
| Subject: Oxyporus populinus (Schumach.) Donk |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Rosidae |
| Order: Rosales |
| Family: Rosaceae |
| Genus: Malus |
| Subject: Malus spp. P. Mill. |